Lauren Marie Mackinnon, DO
Internal Medicine Physician · Libertyville, IL
Lauren Marie Mackinnon, DO is an internal medicine physician with a practice address in Libertyville, Illinois, and NPI 1366018061, issued on Jun 2, 2021. Check the license (Illinois 036-172191, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Lauren Marie Mackinnon
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036-172191 IL
125.078563 IL
Self-reported in NPPES; status is on the state search - Practice location
- 825 S Milwaukee Ave, Libertyville, IL 60048
- Phone
- (847) 566-5200
- Enumerated
- Jun 2, 2021
- Record last updated
- Mar 2, 2026
- Medicare enrollment
- Enrolled (PECOS I20241015002121); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2021
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 825 S Milwaukee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lauren Marie Mackinnon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-172191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
120 Medicare Part D claims for 37 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Advocate Health And Hospitals CorporationLibertyville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lauren Marie Mackinnon among 7,238 internal medicine physician records in Illinois
Lauren Marie Mackinnon, DO is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 74% of them.
- NPI issued2021 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2021 · median 2003 among the 3,580 with a school on file
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 internal medicine physician records list a practice address in Libertyville
They are 27 of the 1,361 NPPES records with a practice address in Libertyville, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Libertyville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mark Chyna, M.D.Libertyville, IL 600481740273507
- Mohina Gupta, MDLibertyville, IL 600481174578843
- Michael Hall, M.D.Libertyville, IL 600481528053972
- Syeda Iftikhar, M.D.Libertyville, IL 600481770599938
- Allison Klotzbuecher, D.O.Libertyville, IL 600481437170552
- Elliot Miller, MDLibertyville, IL 600481164441572
- Melissa Reeves, MDLibertyville, IL 600481942212311
- Mark Riederman, M.D.Libertyville, IL 600481699782151
Common questions
What is Lauren Marie Mackinnon, DO's NPI number?
Lauren Marie Mackinnon, DO's National Provider Identifier (NPI) is 1366018061, issued on Jun 2, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Lauren Marie Mackinnon, DO located?
The NPPES record lists a practice address at 825 S Milwaukee Ave, Libertyville, IL, 60048. Phone: (847) 566-5200. Providers update this record themselves, so call before visiting.
How can I verify Lauren Marie Mackinnon, DO's license?
NPPES lists Illinois license number 036-172191, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lauren Marie Mackinnon, DO prescribe under Medicare Part D?
In 2024, Lauren Marie Mackinnon, DO had 120 Medicare Part D claims for 37 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.